2023
Prenatal per- and polyfluoroalkyl substances (PFAS) exposure in relation to preterm birth subtypes and size-for-gestational age in the LIFECODES cohort 2006–2008
Siwakoti R, Cathey A, Ferguson K, Hao W, Cantonwine D, Mukherjee B, McElrath T, Meeker J. Prenatal per- and polyfluoroalkyl substances (PFAS) exposure in relation to preterm birth subtypes and size-for-gestational age in the LIFECODES cohort 2006–2008. Environmental Research 2023, 237: 116967. PMID: 37634691, PMCID: PMC10913455, DOI: 10.1016/j.envres.2023.116967.Peer-Reviewed Original ResearchConceptsLarge-for-gestational agePreterm birth subtypesBayesian kernel machine regressionSize-for-gestational ageSmall-for-gestational agePreterm birthFetal sexPregnancy outcomesSex-specific estimatesIncreased risk of adverse pregnancy outcomesInterquartile range increaseRisk of adverse pregnancy outcomesBayesian kernel machine regression analysisEarly pregnancy samplesAdverse pregnancy outcomesCase-control studyPrenatal PFAS exposureAssociations of polyfluoroalkyl substancesBW z-scoreEffects of polyfluoroalkyl substancesKernel machine regressionEffect modificationEffects of prenatal exposureRange increaseStratified analysis
2022
Biomarkers of Exposure to Phthalate Mixtures and Adverse Birth Outcomes in a Puerto Rico Birth Cohort
Cathey A, Watkins D, Rosario Z, Vélez C, Mukherjee B, Alshawabkeh A, Cordero J, Meeker J. Biomarkers of Exposure to Phthalate Mixtures and Adverse Birth Outcomes in a Puerto Rico Birth Cohort. Environmental Health Perspectives 2022, 130: 037009. PMID: 35333099, PMCID: PMC8953418, DOI: 10.1289/ehp8990.Peer-Reviewed Original ResearchConceptsSpontaneous preterm birthPreterm birthFetal sexGestational agePregnancy outcomesBirth outcomesBayesian kernel machine regressionPhthalate metabolitesRisk of early deliveryAssociated with increased odds of PTBOdds of preterm birthPhthalate mixtureReduced gestational ageIndividual phthalate metabolitesMeasures of birth weightAssociated with increased riskPhthalate metabolite mixturesAdverse birth outcomesAssociated with increased oddsPuerto Rico TestsiteEnvironmental risk scoreEarly deliveryBirth weightPregnancy cohortLongitudinal pregnancy cohortMediation by hormone concentrations on the associations between repeated measures of phthalate mixture exposure and timing of delivery
Cathey A, Aung M, Watkins D, Rosario Z, Vélez Vega C, Alshawabkeh A, Cordero J, Mukherjee B, Meeker J. Mediation by hormone concentrations on the associations between repeated measures of phthalate mixture exposure and timing of delivery. Journal Of Exposure Science & Environmental Epidemiology 2022, 32: 374-383. PMID: 34987188, PMCID: PMC9124667, DOI: 10.1038/s41370-021-00408-3.Peer-Reviewed Original ResearchMeSH KeywordsEnvironmental PollutantsFemaleGestational AgeHormonesHumansInfant, NewbornMalePhthalic AcidsPregnancyPremature BirthConceptsSpontaneous preterm birthPreterm birthCorticotropin-releasing hormoneFetal sexMale fetusesEarly deliveryHormone concentrationsAssociated with earlier deliveryPhthalate exposurePhthalate mixtureReduced gestational ageTime of deliveryEnvironmental risk scoreGestational ageFemale fetusesUrinary phthalatesSex-specific analysesEndocrine-disrupting capabilitiesReleasing hormoneSerum hormonesFetusesRisk scoreSusceptible to endocrine disruptionBirth cohortHormone
2021
Gestational Hormone Concentrations Are Associated With Timing of Delivery in a Fetal Sex-Dependent Manner
Cathey A, Watkins D, Rosario Z, Vega C, Mukherjee B, O’Neill M, Loch-Caruso R, Alshawabkeh A, Cordero J, Meeker J. Gestational Hormone Concentrations Are Associated With Timing of Delivery in a Fetal Sex-Dependent Manner. Frontiers In Endocrinology 2021, 12: 742145. PMID: 34603214, PMCID: PMC8479114, DOI: 10.3389/fendo.2021.742145.Peer-Reviewed Original ResearchConceptsTime of deliveryFetal sexBody mass indexGestational ageMaternal agePreterm premature rupture of membranesPre-pregnancy body mass indexHormone concentrationsFetal sex-specific effectsPremature rupture of membranesOverall preterm birthPreterm premature ruptureSpontaneous preterm laborRupture of membranesReduced gestational ageOdds of PTBTime of laborSignificant public health problemTobacco smoke exposureGestational hormonesSpontaneous PTBPreterm laborWeeks gestationPreterm birthLongitudinal birth cohortPerformance of urine, blood, and integrated metal biomarkers in relation to birth outcomes in a mixture setting
Ashrap P, Watkins D, Mukherjee B, Rosario-Pabón Z, Vélez-Vega C, Alshawabkeh A, Cordero J, Meeker J. Performance of urine, blood, and integrated metal biomarkers in relation to birth outcomes in a mixture setting. Environmental Research 2021, 200: 111435. PMID: 34097892, PMCID: PMC8403638, DOI: 10.1016/j.envres.2021.111435.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkersCohort StudiesFemaleHumansInfant, NewbornMetalsPregnancyPremature BirthPuerto RicoConceptsEnvironmental risk scoreIntraclass correlation coefficientBirth outcomesBody mass indexWeighted quantile sumOdds ratio of preterm birthSecond-hand smoke exposurePre-pregnancy body mass indexOdds of preterm birthAssociated with birth outcomesIncreased odds of preterm birthPractice study designHealth effectsPreterm birthMaternal educationIncreased oddsOdds ratioSmoke exposureStudy designMaternal ageMass indexArea under the curveRisk scoreLogistic regressionConfidence intervalsMaternal lipidomic signatures in relation to spontaneous preterm birth and large-for-gestational age neonates
Aung M, Ashrap P, Watkins D, Mukherjee B, Rosario Z, Vélez-Vega C, Alshawabkeh A, Cordero J, Meeker J. Maternal lipidomic signatures in relation to spontaneous preterm birth and large-for-gestational age neonates. Scientific Reports 2021, 11: 8115. PMID: 33854141, PMCID: PMC8046995, DOI: 10.1038/s41598-021-87472-9.Peer-Reviewed Original ResearchConceptsSpontaneous preterm birthBiomarkers of pregnancy outcomesGestational age neonatesPreterm birthAge neonatesPregnancy outcomesDegree of hydrocarbon chain saturationIncreased riskNeonatal anthropometric parametersAssociated with increased riskPlasmenyl phosphatidylethanolamineMaternal lipidomeWeeks gestationGestational ageLipidomic signatureAnthropometric parametersLiquid chromatography tandem mass spectrometryLipidomic profilesLipid metabolitesHydrocarbon chain saturationPlasma samplesBirthLogistic regressionHigh-performance liquid chromatography tandem mass spectrometryNeonatesPsychosocial status modifies the effect of maternal blood metal and metalloid concentrations on birth outcomes
Ashrap P, Aker A, Watkins D, Mukherjee B, Rosario-Pabón Z, Vélez-Vega C, Alshawabkeh A, Cordero J, Meeker J. Psychosocial status modifies the effect of maternal blood metal and metalloid concentrations on birth outcomes. Environment International 2021, 149: 106418. PMID: 33548848, PMCID: PMC7897320, DOI: 10.1016/j.envint.2021.106418.Peer-Reviewed Original ResearchConceptsAdverse birth outcomesPsychosocial statusBirth outcomesBody mass indexPsychosocial stressPreterm birthOdds ratioAssociated with adverse birth outcomesPre-pregnancy body mass indexSecond-hand smoke exposurePrenatal psychosocial stressPregnant womenBlood metalsClusters of womenEffects of psychosocial stressPuerto Rico TestsiteIncreased odds ratioSocial supportPerceived stressMaternal educationAdverse associationOverall preterm birthLow birth weightSpontaneous preterm birthCohort study
2020
Maternal blood metal and metalloid concentrations in association with birth outcomes in Northern Puerto Rico
Ashrap P, Watkins D, Mukherjee B, Boss J, Richards M, Rosario Z, Vélez-Vega C, Alshawabkeh A, Cordero J, Meeker J. Maternal blood metal and metalloid concentrations in association with birth outcomes in Northern Puerto Rico. Environment International 2020, 138: 105606. PMID: 32179314, PMCID: PMC7198231, DOI: 10.1016/j.envint.2020.105606.Peer-Reviewed Original ResearchMeSH KeywordsBayes TheoremFemaleGestational AgeHumansInfant, NewbornMaternal ExposureMetalloidsPregnancyPremature BirthPuerto RicoConceptsBayesian kernel machine regressionShorter gestational agePreterm birthGestational ageEnvironmental risk scoreBirth outcomesMetal concentrationsNon-essential metal(loid)sHigher risk of preterm birthRisk of preterm birthLow-level prenatal lead exposureInterquartile rangeOdds of preterm birthAssociated with higher risk of preterm birthRisk scoreEffects of metalsPredictors of birth outcomesAssociated with birth outcomesBayesian kernel machine regression modelsBirthweight z-scoreAssociated with adverse birth outcomesAssociated with higher riskAdverse birth outcomesKernel machine regressionPuerto Rico Testsite
2019
Prediction and associations of preterm birth and its subtypes with eicosanoid enzymatic pathways and inflammatory markers
Aung M, Yu Y, Ferguson K, Cantonwine D, Zeng L, McElrath T, Pennathur S, Mukherjee B, Meeker J. Prediction and associations of preterm birth and its subtypes with eicosanoid enzymatic pathways and inflammatory markers. Scientific Reports 2019, 9: 17049. PMID: 31745121, PMCID: PMC6863859, DOI: 10.1038/s41598-019-53448-z.Peer-Reviewed Original ResearchConceptsSpontaneous preterm birthPreterm birthMultiple logistic regressionCross-sectional study of pregnant womenAssociation of preterm birthCases of preterm birthStudy of pregnant womenOverall preterm birthPreterm birth casesPreterm birth outcomesCytochrome P450 metabolitesLogistic regressionOxidative stress markersAberrant placentationCross-sectional studyDelivered termCytochrome P450 productPredictive biomarkersPregnant womenPretermEicosanoid metabolitesImmune biomarkersLipoxygenase metabolitesBirth casesResolvin D1
2017
Subclinical Changes in Maternal Thyroid Function Parameters in Pregnancy and Fetal Growth
Johns L, Ferguson K, Cantonwine D, Mukherjee B, Meeker J, McElrath T. Subclinical Changes in Maternal Thyroid Function Parameters in Pregnancy and Fetal Growth. The Journal Of Clinical Endocrinology & Metabolism 2017, 103: 1349-1358. PMID: 29293986, PMCID: PMC6018657, DOI: 10.1210/jc.2017-01698.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAsymptomatic DiseasesBirth WeightCase-Control StudiesFemaleFetal DevelopmentHumansInfant, NewbornPregnancyPregnancy ComplicationsPremature BirthProspective StudiesSocioeconomic FactorsThyroid DiseasesThyroid Function TestsThyroid GlandThyroid HormonesThyroxineUltrasonography, PrenatalYoung AdultConceptsBirth weight z-scoreOvert thyroid diseaseThyroid function parametersWeight z-scoreFetal growthThyroid diseaseInverse associationPregnant womenMeasurements of estimated fetal weightSubclinical changesIndices of fetal growthCase-control study of preterm birthStudy of preterm birthZ-scoreAbnormal fetal growthMaternal thyroid functionWeeks of gestationInfluence fetal growthZ-score decreaseThyroid-stimulating hormoneProspective birth cohortCase-control studyFunction parametersFetal weightPreterm birthThyroid hormone parameters during pregnancy in relation to urinary bisphenol A concentrations: A repeated measures study
Aung M, Johns L, Ferguson K, Mukherjee B, McElrath T, Meeker J. Thyroid hormone parameters during pregnancy in relation to urinary bisphenol A concentrations: A repeated measures study. Environment International 2017, 104: 33-40. PMID: 28410473, PMCID: PMC5497503, DOI: 10.1016/j.envint.2017.04.001.Peer-Reviewed Original ResearchConceptsThyroid hormone parametersHormonal parametersStudy visitsCases of preterm birthInterquartile rangeSupply of thyroid hormonesNormal birth outcomesUrinary bisphenol A concentrationsNested case-control studyThyrotropin (TSHContext of pregnancyUrinary BPA concentrationsUrinary bisphenol ACase-control studyIn vitro studiesPreterm birthTSH levelsMultivariate linear regression modelPregnant womenFetal developmentFree T4Visit 3Measures analysisBirth outcomesPregnancyLongitudinal Profiles of Thyroid Hormone Parameters in Pregnancy and Associations with Preterm Birth
Johns L, Ferguson K, McElrath T, Mukherjee B, Seely E, Meeker J. Longitudinal Profiles of Thyroid Hormone Parameters in Pregnancy and Associations with Preterm Birth. PLOS ONE 2017, 12: e0169542. PMID: 28060899, PMCID: PMC5217954, DOI: 10.1371/journal.pone.0169542.Peer-Reviewed Original ResearchConceptsRisk of preterm birthPreterm birthNested case-control study of preterm birthThyroid hormonesSubclinical alterationsPregnant womenCase-control study of preterm birthThyroid diseaseOdds of preterm birthOngoing birth cohort studyNested case-control studyStudy of preterm birthAssociated with preterm birthBirth cohort studyTime pointsMultivariate logistic regression modelOverall preterm birthSpontaneous preterm birthWeeks of gestationClinical thyroid diseaseOvert thyroid diseaseThyroid hormone parametersMaternal thyroid hormone concentrationsMaternal thyroid hormonesLogistic regression models
2016
Mediation of the Relationship between Maternal Phthalate Exposure and Preterm Birth by Oxidative Stress with Repeated Measurements across Pregnancy
Ferguson K, Chen Y, VanderWeele T, McElrath T, Meeker J, Mukherjee B. Mediation of the Relationship between Maternal Phthalate Exposure and Preterm Birth by Oxidative Stress with Repeated Measurements across Pregnancy. Environmental Health Perspectives 2016, 125: 488-494. PMID: 27352406, PMCID: PMC5332184, DOI: 10.1289/ehp282.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkersEnvironmental PollutantsFemaleHumansMaternal ExposureOxidative StressPhthalic AcidsPregnancyPremature BirthConceptsExposure-mediator interactionPreterm birthMaternal phthalate exposureNested case-control study of preterm birthCase-control study of preterm birthNested case-control studyPhthalate exposureStudy of preterm birthPhthalate metabolitesOxidative stressSpontaneous preterm birthLongitudinal measurementsMetabolites of di(2-ethylhexyl) phthalateOdds ratioRepeated measuresDi(2-ethylhexyl) phthalateMediation analysisRegression modelsOxidative stress biomarkersEstimated proportionPretermPregnancyInteraction termsBirthAssociation
2015
Urinary Bisphenol A Levels during Pregnancy and Risk of Preterm Birth
Cantonwine D, Ferguson K, Mukherjee B, McElrath T, Meeker J. Urinary Bisphenol A Levels during Pregnancy and Risk of Preterm Birth. Environmental Health Perspectives 2015, 123: 895-901. PMID: 25815860, PMCID: PMC4559950, DOI: 10.1289/ehp.1408126.Peer-Reviewed Original ResearchConceptsRisk of preterm birthPreterm birthBisphenol A exposurePreterm premature rupture of membranesClinical classificationClassification of preterm birthSubcategories of preterm birthPremature rupture of membranesBisphenol A levelsCases of preterm birthAssociated with preterm birthSpontaneous preterm laborPreterm premature ruptureRupture of membranesSpontaneous preterm birthIntrauterine growth restrictionNested case-control studyProspective birth cohort studyUrinary bisphenol ACase-control studyAssociated with increased oddsA levelsTertiary teaching hospitalBirth cohort studyDelivered pretermStatistical methods for modeling repeated measures of maternal environmental exposure biomarkers during pregnancy in association with preterm birth
Chen Y, Ferguson K, Meeker J, McElrath T, Mukherjee B. Statistical methods for modeling repeated measures of maternal environmental exposure biomarkers during pregnancy in association with preterm birth. Environmental Health 2015, 14: 9. PMID: 25619201, PMCID: PMC4417225, DOI: 10.1186/1476-069x-14-9.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge FactorsBiomarkersBostonCase-Control StudiesCross-Sectional StudiesData Interpretation, StatisticalEnvironmental ExposureFemaleHazardous SubstancesHumansInfant, NewbornMaternal ExposureMiddle AgedModels, StatisticalPhthalic AcidsPregnancyPremature BirthSocioeconomic FactorsYoung AdultConceptsPreterm birthEnvironmental chemical exposuresMeasures of urinary phthalate metabolitesNested case-control studyCross-sectional analysisAverage exposureMeasures of exposureCase-control studyUrinary phthalate metabolitesModel repeated measuresEpidemiological research projectsLongitudinal exposureRepeated measuresPremature birthPretermEnvironmental exposure biomarkersExposure measurementsUrinary metabolitesMaternal factorsPhthalate metabolitesPregnancyStudy of phthalatesLongitudinal predictorsChemical exposureBirth
2014
Urinary Phthalate Metabolites and Biomarkers of Oxidative Stress in Pregnant Women: A Repeated Measures Analysis
Ferguson K, McElrath T, Chen Y, Mukherjee B, Meeker J. Urinary Phthalate Metabolites and Biomarkers of Oxidative Stress in Pregnant Women: A Repeated Measures Analysis. Environmental Health Perspectives 2014, 123: 210-216. PMID: 25402001, PMCID: PMC4348741, DOI: 10.1289/ehp.1307996.Peer-Reviewed Original ResearchConceptsUrinary phthalate metabolitesPhthalate metabolitesMono-n-butyl phthalateBiomarkers of oxidative stressBirth outcomesNested case-control study of preterm birthCase-control study of preterm birthPhthalate exposureStudy of preterm birthStudy of birth outcomesOxidative stressPopulation of pregnant womenNested case-control studyStudy population of pregnant womenAdverse birth outcomesUrine samplesMarkers of oxidative stressRepeated measures analysisHealth end pointsAssociated with significantly higher concentrationsDi(2-ethylhexyl) phthalatePreterm birthPregnant womenMono-n-butylLinear mixed modelsRepeated measures of urinary oxidative stress biomarkers during pregnancy and preterm birth
Ferguson K, McElrath T, Chen Y, Loch-Caruso R, Mukherjee B, Meeker J. Repeated measures of urinary oxidative stress biomarkers during pregnancy and preterm birth. American Journal Of Obstetrics And Gynecology 2014, 212: 208.e1-208.e8. PMID: 25111586, PMCID: PMC4312513, DOI: 10.1016/j.ajog.2014.08.007.Peer-Reviewed Original ResearchConceptsSpontaneous preterm birthPreterm birthAssociated with increased odds of spontaneous preterm birthCases of spontaneous preterm birthOdds of spontaneous preterm birthPathways to preterm birthMechanisms of preterm birthNested case-control studyLevels of 8-isoprostaneOxidative stressUrinary biomarkers of oxidative stressConcentrations of 8-isoprostaneUrinary oxidative stress biomarkersLevels of 8-OHdGMaternal oxidative stressCase-control studyProspective birth cohortUrinary 8-OHdG concentrationsAssociated with increased oddsInvestigate oxidative stressDelivered pretermBiomarkers of oxidative stressPlacental originUrinary concentrations of 8-isoprostanePretermVariability in urinary phthalate metabolite levels across pregnancy and sensitive windows of exposure for the risk of preterm birth
Ferguson K, McElrath T, Ko Y, Mukherjee B, Meeker J. Variability in urinary phthalate metabolite levels across pregnancy and sensitive windows of exposure for the risk of preterm birth. Environment International 2014, 70: 118-124. PMID: 24934852, PMCID: PMC4104181, DOI: 10.1016/j.envint.2014.05.016.Peer-Reviewed Original ResearchConceptsAdjusted odds ratiosUrinary phthalate metabolite levelsPreterm birthPhthalate metabolite levelsOdds ratioOdds of preterm birthAssociated with increased odds of preterm birthIncreased risk of delivering pretermCases of preterm birthWeeks of completed gestationRisk of delivering pretermAssociated with increased oddsMetabolite levelsPresentation of preeclampsiaSignificant public health problemSpontaneous preterm birthIntrauterine growth restrictionLongitudinal birth cohortPhthalate metabolite concentrationsPublic health problemBirth outcomesBirth cohortGrowth restrictionThird trimesterPregnant womenLongitudinal Profiling of Inflammatory Cytokines and C‐reactive Protein during Uncomplicated and Preterm Pregnancy
Ferguson K, McElrath T, Chen Y, Mukherjee B, Meeker J. Longitudinal Profiling of Inflammatory Cytokines and C‐reactive Protein during Uncomplicated and Preterm Pregnancy. American Journal Of Reproductive Immunology 2014, 72: 326-336. PMID: 24807462, PMCID: PMC4573571, DOI: 10.1111/aji.12265.Peer-Reviewed Original ResearchConceptsPreterm birthC-reactive proteinAssociated with increased oddsInflammation markersAssociated with increased odds of spontaneous preterm birthIL-10Associated with increased risk of preterm birthOdds of spontaneous preterm birthEtiology of preterm deliveryPredictors of preterm birthIL-6Risk of preterm birthPreterm premature ruptureSpontaneous preterm laborSpontaneous preterm birthIntrauterine growth restrictionNested case-control studyProfile of inflammatory cytokinesAssociated with increased riskCase-control studyPreterm laborPreterm pregnanciesPreterm deliveryGestational agePremature rupture